1 files changed, 58 insertions, 0 deletions
diff --git a/tool/ruby_vm/models/attribute.rb b/tool/ruby_vm/models/attribute.rb
new file mode 100644
index 0000000000..177b701b92
--- /dev/null
+++ b/tool/ruby_vm/models/attribute.rb
@@ -0,0 +1,58 @@
+# -*- Ruby -*-
+# -*- frozen_string_literal: true; -*-
+# -*- warn_indent: true; -*-
+#
+# Copyright (c) 2017 Urabe, Shyouhei.  All rights reserved.
+#
+# This file is  a part of the programming language  Ruby.  Permission is hereby
+# granted, to  either redistribute and/or  modify this file, provided  that the
+# conditions  mentioned in  the file  COPYING are  met.  Consult  the file  for
+# details.
+
+require_relative 'c_expr'
+
+class RubyVM::Attribute
+  include RubyVM::CEscape
+  attr_reader :insn, :key, :type, :expr
+
+  def initialize opts = {}
+    @insn = opts[:insn]
+    @key = opts[:name]
+    @expr = RubyVM::CExpr.new location: opts[:location], expr: opts[:expr]
+    @type = opts[:type]
+    @ope_decls = @insn.operands.map do |operand|
+      decl = operand[:decl]
+      if @key == 'comptime_sp_inc' && operand[:type] == 'CALL_DATA'
+        decl = decl.gsub('CALL_DATA', 'CALL_INFO').gsub('cd', 'ci')
+      end
+      decl
+    end
+  end
+
+  def name
+    as_tr_cpp "attr #{@key} @ #{@insn.name}"
+  end
+
+  def pretty_name
+    "attr #{type} #{key} @ #{insn.pretty_name}"
+  end
+
+  def declaration
+    if @ope_decls.empty?
+      argv = "void"
+    else
+      argv = @ope_decls.join(', ')
+    end
+    sprintf '%s %s(%s)', @type, name, argv
+  end
+
+  def definition
+    if @ope_decls.empty?
+      argv = "void"
+    else
+      argv = @ope_decls.map {|decl| "MAYBE_UNUSED(#{decl})" }.join(",\n    ")
+      argv = "\n    #{argv}\n" if @ope_decls.size > 1
+    end
+    sprintf "%s\n%s(%s)", @type, name, argv
+  end
+end